<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>login</title>
</head>
<body>
	错误信息：<h4>${msg}</h4>
	<form action="/login" method="post">
	    <p>账号：<input type="text" name="username" value="11999999991"/></p>
	    <p>密码：<input type="text" name="password" value="123456"/></p>
	    <p><input type="submit" value="登录"/></p>
	</form>
</body>
</html>